Senior Java Developer - ( React , Webflux , Kafka & cassandra )

  • Chicago, IL
  • Posted 13 hours ago | Updated 13 hours ago

Overview

On Site
$50 - $55
Accepts corp to corp applications
Contract - Independent
Contract - W2
Contract - 12 Month(s)
Able to Provide Sponsorship

Skills

Java
React.js
Cassandra
Webflux

Job Details

Role : Java Developer ( 8 + Years Must )
Location : Chicago , IL - 5 Days Onsite
Long Term Contract

Skills

candidates from local banks in Chicago or good tier 1 companies (Discover, Mastercard, Visa, Goldman Sachs) Non-Locals are also fine till they come with good background.

Description: Full Stack Developer (Java, Spring Boot, Microservices, Kafka, Cloud, Cassandra, Reactive/WebFlux)

Required Skills & Experience

Technical Skills

5 10+ years of hands-on experience in Core Java (Java 8 21).
Advanced-level expertise in Spring Boot, Spring Cloud, WebFlux, Reactive Streams.
Strong experience building microservices with distributed systems and RESTful APIs.
Hands-on experience with Kafka (producers, consumers, streams, schema registry).
Solid knowledge of Cassandra with performance tuning and data modeling.
Front-end development experience using React / Angular / Vue.
Strong understanding of concurrency, multithreading, and non-blocking programming models.
Cloud & DevOps Skills

Experience working with AWS, Azure, or Google Cloud Platform cloud architectures.
Proficiency with Docker, Kubernetes, Git, CI/CD pipelines.
Understanding of distributed tracing, observability, service mesh is a plus.
Soft Skills

Strong analytical, debugging, and problem-solving skills.
Excellent communication and teamwork abilities.
Self-driven and capable of leading full-stack solutions independently.

Preferred Qualifications

Knowledge of Kafka Streams, ksqlDB, or event-driven microservice patterns.
Experience with GraphQL, API Gateways (Kong, Apigee, or Spring Cloud Gateway).
Cloud or Java certifications (AWS, Google Cloud Platform, OCI, Java, K8s).
Prior experience with serverless or micro-frontend architectures.

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